Throttle Cable Johnson 355911

Function and Technical Context

The throttle cable is the mechanical element that transmits the movement of the throttle control lever from the control panel to the carburetor or the throttle body of the outboard motor, directly regulating the amount of air-fuel mixture entering the cylinder and, therefore, the engine RPM. It operates within the throttle and acceleration control system, and its correct operation is essential to maintain precise engine response to any demand from the operator. A cable in poor condition causes irregular acceleration, loss of response or even throttle lockup, situations that compromise the maneuverability of the vessel and can be dangerous during navigation. This cable is specifically designed for Johnson 15 HP outboard motors manufactured until 1988, ensuring proper mechanical fit for these OMC range propulsion units.

When to Replace This Part?

The most common symptoms of wear on a throttle cable include slow or jerky response when accelerating, sudden tugs when moving the throttle control lever, difficulty maintaining stable idle or inability to reach full throttle position. The cable sheath can crack or slip due to continuous exposure to moisture and salt, and the inner core can rust or break due to fatigue. It is recommended to check the cable condition at each seasonal maintenance interval and replace it at the first sign of stiffness, excessive play or visible sheath deterioration, as throttle failure at sea can leave the vessel without power control.

Equivalent Manufacturer References